pre-initialize palettes for blip. costs tokens, saves time

avoids time rollover! not doing this for `distance` because I don't intend any level script to exceed five minutes, but freeze time could be much longer

updatedshmup.p8

@@ -118,6 +118,7 @@ function linked_list:pop_front()
 end
 
 function _init()
+ init_blip_pals()
 	wipe_level()
 	primary_ship.main_gun = zap_gun.new()
 	load_level(example_level)
@@ -426,7 +427,7 @@ ship_m = {
  shield = 0,
  maxshield = 0,
  shieldcost = 32767.9,
- shieldcooldown =  180,
+ shieldcooldown =  0x0.00a0,
  
  -- default generator behavior:
  -- 10 seconds for a full charge
@@ -434,8 +435,6 @@ ship_m = {
  power = 600,
  generator = 1, -- power gen per frame
  
- invincible_until = -32768,
- 
  slip = true,  -- most enemies slide
  
  xmomentum = 0,
@@ -517,7 +516,6 @@ end
 
 function ship_m:hitsomething(dmg)
  if (dmg <= 0) return false
- if (lframe < self.invincible_until) return false
  self.shield_refresh_ready = lframe + self.shieldcooldown
  if self.shield >= dmg then
   self.shield -= dmg
@@ -864,7 +862,7 @@ end
 -- effective frame
 distance = 0
 -- actual frame count since
--- start of level
+-- start of level times 0x0.0001
 lframe = 0
 
 -- do not advance distance when
@@ -888,7 +886,7 @@ function load_level(lvltbl)
 end
 
 function level_frame()
- lframe += 1
+ lframe += 0x0.0001
  if (current_level == nil) return true
  if freeze == 0 then 
   distance += 1
@@ -1008,11 +1006,11 @@ function spawn_blocking_boss_chasey()
   chasey.die(self)
  end
 
- local nextspawn = lframe + 120
+ local nextspawn = lframe + 0x0.0080
  events:push_back{move=function()
   if lframe >= nextspawn then
    helpers[flr(rnd(#helpers))+1]()
-   nextspawn += 60
+   nextspawn += 0x0.0040
   end
   return c.dead
  end}
@@ -1055,7 +1053,7 @@ example_level = {
   events:push_back{move=function()
    if (lframe < tnext) return false
    spawn_blocking_blocky()
-   tnext = lframe + 12
+   tnext = lframe + 0x0.000c
    remain -= 1
    return (remain <= 0) 
   end}
@@ -1176,7 +1174,7 @@ mknew(zap)
 zap_gun = gun_base.new{
  enemy = false,
  power = 20, -- power consumed per shot
- cooldown = 10, -- frames between shots
+ cooldown = 0x0.000a, -- frames between shots
  ammo = nil, -- unlimited ammo - main gun
  t = zap -- metatable of bullet to fire
 }
@@ -1233,7 +1231,7 @@ blast_gun = gun_base.new{
  icon = 13,
  enemy = false,
  power = 0, -- ammo, not power
- cooldown = 30, -- frames between shots
+ cooldown = 0x0.0020, -- frames between shots
  ammo = 5,
  maxammo = 5,
  t = blast -- type of bullet to fire
@@ -1266,7 +1264,7 @@ protron_gun = gun_base.new{
  icon = 25,
  enemy = false,
  power = 35,
- cooldown = 15, -- frames between shots
+ cooldown = 0x0.000f, -- frames between shots
  ammo = nil,
  maxammo = nil,
  actually_shoot = function(self, x, y)
@@ -1324,7 +1322,7 @@ vulcan_gun = gun_base.new{
  icon = 37,
  enemy = false,
  power = 8,
- cooldown = 2, -- frames between shots
+ cooldown = 0x0.0002, -- frames between shots
  ammo = nil,
  maxammo = nil,
  dxs = {0.35, -0.35, -0.7, 0.7, 0.35, -0.35},
@@ -1573,21 +1571,22 @@ it sets lframe ("level frame")
 and distance to 0.
 
 every frame, level_frame
-increments lframe. then if the
-level is not frozen (more on
-that later), it increments
-distance and runs the function
-in the level table for exactly
-that frame number (if any).
-distance is therefore "nonfrozen
-frames", and is used to trigger
-level progress. lframe always
+increments lframe by 0x0.0001.
+then if the level is not frozen,
+it increments distance by 1.0
+and runs the function in the
+level table for exactly that
+frame number (if any). distance
+is therefore "nonfrozen frames",
+and is used to trigger level
+progress. lframe always
 increments. ships are encouraged
 to use lframe to control
 animation and movement, and may
 use distance to react to level
 progress separately from overall
-time.
+time. remember to multiply
+lframe-related stuff by 0x0001.
 
 a special sentinel value, eol,
 marks the end of the level.
@@ -1754,10 +1753,19 @@ end
 
 mknew(blip_fx)
 
+blip_pals = {}
+function init_blip_pals()
+ for i=0,15 do
+  local pp = {[0]=0}
+  for j=1,15 do
+   pp[j] = i
+  end
+  blip_pals[i]=pp
+ end
+end
+
 function blip(obj, col, frames)
- local p = {[0]=0}
- obj.fx_pal = p
- for i=1,15 do p[i]=col end
+ obj.fx_pal = blip_pals[col]
  if (obj.___fx_pal_event) obj.___fx_pal_event:abort() 
  events:push_back(blip_fx.new{frames=frames, obj=obj})
 end
@@ -1842,7 +1850,7 @@ sheen8x8 = split"2,54,55,56,57,58,59,60,61"
 
 function powerup:draw()
  spr(self.sprites[max(1,
-       (lframe\self.anim_speed)
+       ((lframe<<16)\self.anim_speed)
        %(#self.sprites+self.loop_pause)
        -self.loop_pause
        +1)],